in reply to Re^3: SOAP::Transport::HTTP::Client::send_receive: 500 Can't connect to testproxy:8080
in thread SOAP::Transport::HTTP::Client::send_receive: 500 Can't connect to testproxy:8080

"Client-Warning: Internal response " means that its 500 error generated by LWP

handshakefailed looks like a SSL issue

So upgrade the LWP and SSL modules then try stuff and then figure something out :)

use IO::Socket::SSL qw(debug3);

http://search.cpan.org/perldoc/Crypt::SSLeay#SSL_diagnostics_and_Debugging lists $ENV{HTTPS_DEBUG} = 1;

among other tips Debugging SSL communications -- Prefetch Technologies

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